The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2011
Filed:
Mar. 28, 2008
Randy W. Hill, Tucson, AZ (US);
Abram G. Young, Tucson, AZ (US);
Justin P. Bergfield, Tucson, AZ (US);
Randy W. Hill, Tucson, AZ (US);
Abram G. Young, Tucson, AZ (US);
Justin P. Bergfield, Tucson, AZ (US);
Raytheon Company, Waltham, MA (US);
Abstract
A communication system () includes a transmitter () with (i) a transmitter photonic crystal () having a waveguide () and multiple cavities (, and) spaced along the waveguide (); (ii) a light source (); and (iii) a controller () that controls the cavities (, and) to translate multiple electronic data bits to optical data bits simultaneously in respective cavities (, and) illuminated by the light source (). A corresponding receiver () includes a receiver photonic crystal () having a data/key waveguide () for receiving a data/key signal and a latch waveguide () for receiving a latch signal. The photonic crystal () also includes data readout cavities (, and) and lock cavities (, and) adapted to compare the key bits to respective lock bits. The data readout cavities (, and) are spaced to read out the data bits simultaneously if (a) the data/key signal and the latch signal are received simultaneously, (b) the data/key signal and the latch signal have the same length, and (c) the key bits in the key/data signal match the lock bits.